🎨 Palette: 접근성을 고려한 CSS hover 선택자 개선

[seonghobae]

💡 What: 링크 호버 효과의 대상을 span:last-child에서 span:nth-child(2)로 변경했습니다.\n🎯 Why: 이전에 스크린 리더용 .visually-hidden 요소가 추가되면서 :last-child 선택자가 의도치 않게 숨겨진 요소에 적용되어 호버 시 밑줄 효과가 사라지는 문제가 있었습니다. 이를 구체적인 요소 지정 방식으로 수정하여 시각적 피드백을 복구했습니다.\n📸 Before/After: 해당 없음 (시각적 버그 수정)\n♿ Accessibility: 시각적 피드백(호버 및 포커스 상태)을 안정적으로 제공하여 접근성 및 사용성을 개선했습니다.

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PR created automatically by Jules for task 9638661576417626659 started by @seonghobae

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📥 Commits

Reviewing files that changed from the base of the PR and between de82f99 and ef3b651.

📒 Files selected for processing (3)

• .jules/palette.md
• src/main/kotlin/html4tree/main.kt
• src/test/kotlin/html4tree/GeneratedIndexReadabilityTest.kt

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✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no bugs or issues to report.